"Paul William Rutherford (29 February 1940 - 5 August 2007) was an English free improvising trombonist. Born in Greenwich, South East London, Rutherford initially played saxophone but switched to trombone. During the 1960s, he taught at the Guildhall School of Music and Drama.

In 1970, Rutherford, guitarist Derek Bailey and bassist Barry Guy formed the improvising group Iskra 1903, which lasted until 1973. The formation was documented on a double album from Incus, later reissued with much bonus material on the 3-CD set Chapter One (Emanem, 2000). A film soundtrack was separately released as Buzz Soundtrack. Iskra 1903 was one of the earliest free improvising groups to omit a drummer/percussionist, permitting the players to explore a range of textures and dynamics which set it apart from such other contemporary improvising ensembles as SME and AMM. The group's unusual name is the Russian word for "spark"; it was the title of the Iskra revolutionary newspaper edited by Lenin. The "1903" designation means "20th century music for trio"; occasionally Evan Parker played with the group (Iskra 1904) and Rutherford also at one point assembled a 12-piece ensemble called, inevitably, Iskra 1912. The group was later revived with Philipp Wachsmann replacing Bailey, a phase of the group's life that lasted from roughly 1977 to 1995; its earlier work is documented on Chapter Two (Emanem, 2006) and its final recordings were issued on Maya (Iskra 1903) and Emanem (Frankfurt 1991).

Rutherford also played with Globe Unity Orchestra, London Jazz Composer's Orchestra, Centipede, the Mike Westbrook Orchestra, and the Orckestra, a merger of avant-rock group Henry Cow, the Mike Westbrook Brass Band and folk singer Frankie Armstrong. He also played a very small number of gigs with Soft Machine. He is perhaps most famous for solo trombone improvisations. His album The Gentle Harm of the Bourgeoisie is a landmark recording in solo trombone and his 1983 Trio album Gheim, recorded at the Bracknell Jazz Festival is another acclaimed work.

Rutherford died of cirrhosis of the liver and a ruptured aorta on 5 August 2007, aged 67."

"Philipp Wachsmann. Born Uganda, 1944; violin, viola and electronics.

In the CD booklet to Gushwachs, John Corbett notes that Phillip Wachsmann came to free improvisation from a predominantly classical background, particularly via the contemporary experiments of "indeterminacy, graphic and prose-based scores, conceptualism and electroacoustics, listening to Webern, Partch, Ives, Berio and Varèse, reading 'Die Reihe' and interrogating the rhythmic, harmonic and melodic preoccupations of Western art music. Starting in 1969, Wachsmann was a member of Yggdrasil, an ensemble performing works by Cage, Cardew, Feldman, Ashley and others and in this group he used contact mikes on the violin and made his own electronic instruments, ring modulators and routing devices. Ironically, his studies with Nadia Boulanger in Paris (1969-1970) pushed him hard in the direction of free music. He recalls: 'Despite her neoclassical orientation, her insistence that composition is about the imagination of performance and its realisation, the live moment, and her stunning ability to make this happen was a powerful influence on me, steering towards 'performance' and therefore 'improvisation'.'"

Wachsmann moved from Yggdrasil to Chamberpot - recorded on Bead 2 - and shortly thereafter appeared on Tony Oxley's influential February papers, forward looking in the virtual 'industrial' orientation of some of the tracks, years before this became an accepted genre; the two musicians have continued to work together, in various groupings but notably in the percussionist's Celebration Orchestra. Philipp Wachsmann has also performed and/or recorded with: Derek Bailey's Company, e.g. on the recording Epiphanies; Georg Graewe; Barry Guy; Iskra 1903; King Übü Orchestrü; London Jazz Composers' Orchestra; Evan Parker, particularly as part of the Evan Parker Electronic Project; Quintet Moderne; Fred Van Hove's ML DD 4; Rüdiger Carl's COWWS (now CPWWS) Quintet; and Lines, with Martin Blume, Jim Denley, Axel Dörner and Marcio Mattos. He also plays as a solo musician.

Phillip Wachsmann also administers Bead Records."